Add device action support to the media_player integration

[balloob]

Add device action support to the media_player integration.

Device actions are part of Device Automations, a new concept that was recently launched to make automations more user friendly.

Device automations consist of three different parts: triggers, conditions and actions. This issue is about the action part.

To get started with this issue, you will need to set up a Home Assistant development environment. The easiest approach is to get started using a dev container.

Once you have a development environment set up, run the following and follow the instructions:

python3 -m script.scaffold device_action

(This issue is part of #26979)

[manekenpix]

Can I work on this one for Hacktoberfest?

[balloob]

Yes. All issues marked as Hacktoberfest are up for grabs ! (well any issue really, but Hacktoberfest are preferred)

[manekenpix]

I ran into this issue while following this (using Setup local repository):

Traceback (most recent call last):
  File "/home/{user}/.local/bin/pre-commit", line 6, in <module>
    from pre_commit.main import main
ModuleNotFoundError: No module named 'pre_commit'

I installed pre-commit (pip3 install pre-commit), but no luck.

[emontnemery]

Please make sure to follow the instructions here: https://developers.home-assistant.io/docs/en/development_environment.html

With the error you see, you might have forgotten this step: https://developers.home-assistant.io/docs/en/development_environment.html#setting-up-virtual-environment

[springstan]

@manekenpix any updates on this? :)

[timmo001]

A couple of good ones here that could be added for devices that support the features.

• Volume (up, down, set, etc.)
• Controls (play, pause, seek, shuffle, source, sound mode etc.)
• Play Media (if integration loaded and supported)
• Cast (might be specific to the cast integration though)

[chmielowiec]

For reference: #35679

[balloob]

Closing this as per #35679, we need more work.